| 9-呲啶基荧光酮与铬显色反应的研究 |
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| 引用本文： | 冯建章,李敬革,韩雪并.9-呲啶基荧光酮与铬显色反应的研究[J].北京大学学报(自然科学版),1991(2). |
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| 作者姓名： | 冯建章 李敬革 韩雪并 |
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| 作者单位： | 北京大学化学系
(冯建章，李敬革)，北京大学化学系(韩雪并) |
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| 摘 要： | 本文研究了9-吡啶基荧光酮与铬的反应条件,确定在pH5.0～6.0范围内形成稳定的络合物,λ_(max)=590nm,组成为Me∶R=1∶3,表观摩尔吸光系数ε=1.12×10~5L·mol~(-1)·cm~(-1)。应用拟定的方法测定了水中的铬,结果令人满意。
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| 关 键 词： | 9-吡啶基荧光酮 分光光度法 铬测定 天然水 |
Study on the Sensitive Colour Reaction of Chromium with 9-Pyridine 2,3,7-Trihydroxyfluorone and Its Application |
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| FENG Jianzhang,LI Jinge,HAN Xuebing.Study on the Sensitive Colour Reaction of Chromium with 9-Pyridine 2,3,7-Trihydroxyfluorone and Its Application[J].Acta Scientiarum Naturalium Universitatis Pekinensis,1991(2). |
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| Authors: | FENG Jianzhang LI Jinge HAN Xuebing |
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| Abstract: | A sensitive method for the spectrophotometric determination of chromium with 9-pyridinefluorone in the presence of CTMAB has been developed. The optimum condition for the determination is reported. The method has been applied to the determination of micro chromium in natural water. |
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| Keywords: | 9-Pyridinefluorone Spectrophotometry Chromium determinatiou Natural water |
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